Effects of Corn Bran and Degradable Protein Source on Finishing Heifer Performance and Estimates of Microbial Protein Supply in High Moisture Corn Finishing Diets

Authors

R. Allen MacDonald, University of Nebraska-Lincoln
Terry J. Klopfenstein, University of Nebraska-LincolnFollow
Galen E. Erickson, University of Nebraska-LincolnFollow
Casey N. Macken, University of Nebraska-Lincoln
Kimberly M. Whittet, University of Nebraska-Lincoln

Date of this Version

January 2004

Comments

Published in 2004 Nebraska Beef Cattle Report. Copyright © 2003 The Board of Regents of the University of Nebraska.

Abstract

A feeding trial was conducted to evaluate performance and estimates of microbial CP (MCP) supply in high moisture corn finishing diets with corn bran addition and different sources of degradable protein. Corn bran increased intake throughout the feeding period but decreased performance after day 42. Microbial efficiency and MCP were unaffected by corn bran addition, but MCP increased with increasing urea level. Performance was increased for the first 42 days when SBM was fed relative to urea, but microbial efficiency and MCP were unaffected. Supplemental DIP level did not affect MCP estimates. Estimates of MCP from allantoin were low and variable but did reflect differences that could be explained with performance.